Storage Example Error

[mfaisaltariq]

The code I'm using is given below.

const { Crypto } = require("node-webcrypto-p11");

const config = {
    library: "/usr/local/lib/softhsm/libsofthsm2.so",
    name: "SoftHSMv2",
    slot: 0,
    readWrite: true,
    pin: "0987654321"
}

const crypto = new Crypto(config);

// crypto.login('0987654321');

const keys = await crypto.subtle.generateKey({name: "ECDSA", namedCurve: "P-256"}, false, ["sign", "verify"]);
// set private key to storage
const privateKeyID = await crypto.keyStorage.setItem(keys.privateKey);
// set public key to storage
const publicKeyID = await crypto.keyStorage.setItem(keys.publicKey);
// get list of keys
const indexes = await crypto.keyStorage.keys();
console.log(indexes); // ['private-3239...', 'public-3239...']
// get key by id
const privateKey = await crypto.keyStorage.getItem("private-3239...");
// signing data
const signature = await crypto.subtle.sign({name: "ECDSA", hash: "SHA-256"}, key, Buffer.from("Message here"));
console.log("Signature:", Buffer.from(signature).toString("hex"));

Error

/Users/mfaisaltariq/node-projects/pkcs11js_test_app/webcrypto.js:15
const keys = await crypto.subtle.generateKey({name: "ECDSA", namedCurve: "P-256"}, false, ["sign", "verify"]);
                   ^^^^^^

SyntaxError: Unexpected identifier
    at createScript (vm.js:80:10)
    at Object.runInThisContext (vm.js:139:10)
    at Module._compile (module.js:607:28)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)
    at Function.Module.runMain (module.js:684:10)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

$ node -v
v8.9.4
$ softhsm2-util -v
2.5.0

[microshine]

I'm not sure that node v8 supports async/await

If so you should use Promise instead of async/await, or update nodejs to the LTS version